Theory of phonon dissipation in the conduction of stressed Au nanowires

L Stella*, GE Santoro, M Fabrizio, E Tosatti

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Recent experiments on Au break junctions [Phys. Rev. Lett. 88 (2002) 216803] have characterized the nonlinear conductance of stretched short Au nanowires. They reveal in the voltage range 10-20 meV the signatures of dissipation effects, likely due to phonons in the nanowire, reducing the conductance below the quantized value of 2e(2)/h. We present here a theory, based on a model tight-binding Hamiltonian and on non-equilibrium Green's function techniques, which accounts for the main features of the experiment. The theory helps in revealing details of the experiment which need to be addressed with a more realistic, less idealized, theoretical framework. (C) 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)430-435
Number of pages6
JournalSurface Science
Volume566
DOIs
Publication statusPublished - 20 Sep 2004
Event22nd European Conference on Surface Science (ECOSS 22) - Prague, Czech Republic
Duration: 07 Sep 200312 Sep 2003

Keywords

  • electrical transport (conductivity, resistivity, mobility, etc.)
  • metallic surfaces
  • phonons
  • gold
  • surface stress
  • Green's function methods
  • ATOMIC WIRES
  • GOLD ATOMS
  • SPECTROSCOPY
  • TRANSMISSION
  • TRANSPORT

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